WO2024200725A1 - Couvercle pour batterie d'engin de mobilité - Google Patents
Couvercle pour batterie d'engin de mobilité Download PDFInfo
- Publication number
- WO2024200725A1 WO2024200725A1 PCT/EP2024/058609 EP2024058609W WO2024200725A1 WO 2024200725 A1 WO2024200725 A1 WO 2024200725A1 EP 2024058609 W EP2024058609 W EP 2024058609W WO 2024200725 A1 WO2024200725 A1 WO 2024200725A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cover
- battery
- shutter
- closed position
- duct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present application relates to the field of batteries for mobility devices, in particular mobility devices comprising an electric motor and at least one wheel.
- the present invention relates to batteries used in an electric vehicle, a hybrid electric vehicle or a plug-in hybrid electric vehicle.
- the invention according to a first aspect relates to a cover for a battery of a mobility device arranged to be installed between the battery and a passenger compartment of the mobility device, said cover comprising at least one first air circulation duct provided with a shutter, movable between an open position and a closed position and a actuator for moving the shutter between the open position and the closed position, the actuator being arranged to receive a signal from a battery management system and/or an autonomous sensor and to control the closing and/or opening of the shutter following the reception of a triggering event signal, the battery management system comprising at least one battery alert threshold beyond which the shutter moves and remains in the closed position.
- the invention according to a first aspect relates to a cover for a mobility device battery arranged to be installed between the battery and a passenger compartment of the mobility device, said cover comprising at least a first air circulation duct provided with a shutter, movable between an open position and a closed position.
- the first air circulation duct allows air from the passenger compartment, particularly recycled air, to be brought to the battery.
- the shutter for example, pivots around a rotation axis.
- the first duct when the shutter is in the open position, the first duct allows air to flow from the passenger compartment to the battery and vice versa, from the battery to the passenger compartment.
- the cover may advantageously include a filtration system in order to eliminate any harmful gases released by the battery.
- the cover includes an actuator for moving the shutter between the open position and the closed position.
- the actuator by moving the shutter from the open position to the closed position, activates the air isolation of the battery from the passenger compartment.
- the shutter is in particular connected to an output shaft of the actuator.
- the actuator is arranged to receive a signal from a battery management system and/or at least one autonomous sensor and to control the closing and/or opening of the shutter following the reception of a trigger event signal.
- An autonomous sensor is understood to mean in particular a sensor provided with an independent power supply and/or integrating capacities data recording and/or self-sufficient, i.e. without interaction with other sensors or computers, to send a signal enabling the control of the closing and/or opening of the shutter.
- the autonomous sensor(s) arranged to send signals to the actuator are notably chosen from a battery temperature sensor, a passenger compartment temperature sensor, an outside air temperature sensor, a power supply detector for a fan linked to the battery, a pressure sensor for at least one cell of the battery, a cell voltage sensor, a current sensor, a sensor for measuring the level of presence of a gas in the air, a sensor for measuring the presence of smoke and/or the level of particles suspended in the air produced during combustion, a sensor sensitive to thermal radiation emitted by the flames.
- the battery management system also called BMS, i.e. Battery Management System in English, sends a signal to the actuator, the result of the analysis of the parameters measured by the sensors, in particular temperature, voltage and current of the battery.
- a triggering event means a change in the value of at least one parameter linked to the battery which causes the shutter to move.
- the shutter is, for example, in the closed position.
- the shutter can be in the open or closed position depending on specific external conditions, signaled in particular by the battery management system and/or at least one autonomous sensor.
- the position of the shutter may depend on the temperature inside the passenger compartment and/or the battery temperature. It may depend on whether or not a battery-related fan is operating.
- the shutter when the battery is started and, due to its thermal inertia, is still hot from previous use and has a temperature higher than the set temperature of the passenger compartment, the shutter can be opened and the air can circulate from the battery to the passenger compartment during a given period or, alternatively, until the passenger compartment temperature has reached a set temperature.
- the battery management system also called BMS, i.e. Battery Management System in English, may include a low threshold and/or a high temperature threshold corresponding to a preferred operating range of the battery.
- the values of these parameters of the battery management system, the low threshold, respectively the high threshold, of temperature are set based on criteria of battery efficiency and comfort inside the passenger compartment.
- the low threshold is for example equal to or close to 15°C and the high threshold between 30°C and 35°C.
- the battery management system also includes at least one alert threshold beyond which the shutter moves and remains in the closed position.
- the at least alert threshold may be chosen at a predefined maximum value corresponding to a risk to the safety of the occupants of the passenger compartment of the mobility device, in particular a risk of fire and/or a risk of gas emanation.
- the at least one alert threshold can be a battery temperature alert threshold.
- a maximum value of the battery temperature alert threshold can be predefined, the maximum value of the battery temperature alert threshold can be between 60°C and 120°C, preferably between 80°C and 120°C.
- the at least one alert threshold may be a gas presence alert threshold corresponding to a predefined maximum rate of presence of a gas in the air such as in particular gases of chemical compositions H2 and/or CO2 and/or CO and/or HF and/or POF3.
- the predefined maximum rate of the alert threshold for the presence of a gas in the air may be between 4000 and 12000 ppm for H2 gas, between 5000 and 15000 ppm for CO2 gas, between 20 and 100 ppm for CO gas, and between 1.8 and 3 ppm for HF and POF3 gases.
- alert thresholds may be predefined from the signals sent by the autonomous sensor(s), in particular alert thresholds linked to the battery voltage, or to the battery intensity, or to the measurement of the presence of smoke and/or to the rate of particles suspended in the air produced during a combustion, or even to the measurement of thermal radiation emitted by flames.
- the shutter when the battery temperature is strictly higher than the high threshold, the shutter is in the open position and air flows from the passenger compartment to the battery, unless the passenger compartment temperature is higher than or equal to the battery temperature. In the latter case the shutter is closed;
- the shutter when the battery temperature is strictly below the low threshold and strictly below the passenger compartment temperature, the shutter is in the open position.
- the air supply from the passenger compartment to the battery warms the battery and improves its performance;
- the shutter when the battery temperature is between the low and high temperature thresholds, i.e. the battery is in its preferred temperature range, and the passenger compartment temperature is strictly lower than the low threshold or strictly higher than the high temperature threshold, the shutter is in the open position and air flows from the battery to the passenger compartment.
- the air intake from the battery improves passenger compartment comfort.
- a trigger event to send a signal and cause the shutter to move is for example linked to a variation in the battery temperature level and/or the passenger compartment temperature compared to the temperature thresholds.
- Another trigger event can be linked to the comparison of the battery and passenger compartment temperatures.
- the actuator is notably chosen from a geared motor, a stepper motor, a rack or pinion system, or a return member system.
- the actuator is for example connected to an external wall of the first air circulation duct.
- the movement between the open position and the closed position is reversible.
- the shutter is in particular arranged to pivot in the first duct in two directions of rotation between the open and closed positions.
- the movement is irreversible, except possibly with external intervention.
- irreversible movement once the shutter is in the closed position, returning to the open position is only possible by replacing all or part of the cover or at least by manually moving the shutter to the open position.
- the movement between the open position and the closed position may be reversible as long as at least the alert threshold of the battery management system has not been reached.
- the movement of the shutter may be irreversible, the shutter moving and then remaining locked in the closed position when at least the alert threshold of the battery management system has been reached.
- the cover according to the invention may alternatively or additionally have one of the following characteristics:
- the cover comprises at least one second air circulation duct, in particular an external air inlet duct, and/or at least one third air circulation duct, in particular an air outlet duct;
- the shutter is of the drum type, it can therefore include a portion of cylinder limited by side cheeks;
- the shutter is a butterfly shutter or a sliding shutter
- the first conduit is not limited to a particular shape.
- the first conduit may thus have an at least partially polygonal cross-section;
- the cover may include a perforated or meshed part to separate the first conduit from the living area;
- the shutter may have an edge made at least partly of soft material in order to ensure better sealing in the closed position;
- the shutter may be made of a material resistant to high temperatures, in particular a material having a melting temperature greater than 250°C; - the shutter may be made of a material containing flame retardant additives or a material covered with a coating containing flame retardant additives;
- the shutter can be made of an intumescent material or a material covered with an intumescent coating.
- the invention relates to a battery box comprising a cover as described above.
- Said housing comprises in particular at least one second air circulation duct, in particular an external air inlet duct, and/or at least one third air circulation duct, in particular an air outlet duct.
- the second air circulation duct and/or the third air circulation duct of the housing may or may not belong to the cover.
- the at least second conduit and/or the at least third conduit may each comprise a closing flap as described previously in the present application.
- the invention relates to an assembly for a mobility device comprising a battery and a cover or a housing as described above.
- the assembly further comprises a fan.
- the operation of the fan can in particular control the movement of the shutter to the open position.
- FIG. 1 illustrates an assembly for a mobility device according to the invention
- FIG. 2a is a schematic partial view of a cover according to a first embodiment of the invention in the open position of the shutter;
- FIG. 2b is a schematic partial view of the cover of Figure 2a, the shutter being in the closed position;
- FIG. 3 is a sectional view along III-III axial of the conduit of figures 2a-2b, and
- FIG. 4a and 4b are schematic views of a cover according to a second embodiment of the invention in the open position of the shutter, respectively closed position.
- the arrow Gv shows in the figures the direction of air circulation passing through the first duct 2’, in particular coming from the passenger compartment of the vehicle.
- certain objects may be indexed, such as first object, second object or third object.
- it is a simple indexing to differentiate and name objects that are close but not identical. This indexing does not imply a priority of one object over another and such names can easily be reversed without departing from the scope of the present description. This indexing also does not imply an order in time.
- Figure 1 illustrates an assembly 900 of a battery 500 and a housing 100 housing said battery.
- the housing 100 comprises a cover 1.
- Said cover 1 comprises a first air circulation duct 2' provided with a shutter 3.
- the cover 1 here comprises an actuator 8, not visible in the figure, arranged to pivot the shutter 3 around an axis XX' between an open position O and a closed position S.
- the shutter 3 is shown here in the closed position.
- the housing 100 further comprises a second 2” external air inlet duct and a third 2’ duct.
- the arrows Gv, OUT and EXT respectively show the direction of air circulation coming from the passenger compartment of the vehicle in the first 2’ duct, coming from the outside in the second 2” duct and leaving the housing via the third 2’ duct.
- the box 100 also houses a fan 40.
- the fan is here located in the third duct 2’”.
- the second and third 2” and 2'” conduits are not not elements of the cover 1.
- the cover of the housing comprises at least a second external air inlet duct, and/or at least a third air outlet duct.
- the second external air inlet duct 2” and/or third duct 2’” also includes a shutter 3 movable between an open position and a closed position.
- Figures 2a and 2b illustrate a first conduit 2’ of a cover 1 according to an exemplary embodiment of the invention.
- the cover 1 has a tubular part 2, here of polygonal cross-section, defining a first duct 2' in which a shutter 3 is mounted articulated about an axis X-X' to move over a predetermined angular travel in two directions of rotation.
- the angular travel of the shutter 3 extends for example between stops 4, 5 to respectively define an open position O in which the shutter 3 releases the passage of air in the first duct 2' and a closed position S in which the shutter 3 obstructs the passage of air in the first duct 2'.
- Figure 3 corresponds to a sectional view along III - III of the first conduit 2’ of figures 2a and 2b, the shutter being in an intermediate position between the open position O and the closed position S.
- the shutter 3 is connected to an output shaft 7 of an actuator 8.
- the actuator 8 is for example a small stepper or direct current electric motor.
- the actuator 8 is fixed externally on an external side wall 12 of the first duct 2'.
- the actuator 8 is furthermore here arranged to receive a signal 10 from a battery management system - not shown - and/or from an autonomous sensor - not shown.
- the actuator controls the closed position S of the shutter 3 following the reception of a triggering event detection signal 10.
- the shutter 3 illustrated comprises a central part 13 articulated along the axis XX' and two lateral parts to block the passage of air.
- the movement between the open position O and the closed position (S) is here reversible.
- the actuator 8 can control the movement of the shutter 3 from the closed position S to the open position O.
- Figures 4a and 4b illustrate another example of a first duct 2' of a cover 1 according to the invention.
- the cover 1 comprises an actuator 8, here a return member system, for moving the shutter 3 inside the first air circulation duct 2', between an open position O and a closed position S.
- the shutter 3 is held in the open position O.
- the actuator 8 comprises a return member - here a spring - and a locking latch holding the spring in the taut position.
- the air circulates freely in the first duct 2', in both directions, i.e. from the passenger compartment of the mobility device to the battery and vice versa.
- FIG. 4b illustrates this closed position in which air can no longer circulate between the passenger compartment of the mobility device and the battery.
- the shutter 3 prevents any harmful fumes or burning air, or even flames, from reaching the passenger compartment.
- the cover and the housing of the illustrated examples are made of thermoplastic material having a thickness of a few millimeters.
- the cover and the housing according to the invention are not limited to a particular material. Any material known to those skilled in the art in the field of covers or housings for mobility device batteries can be used in the context of the invention.
- the cover and/or the housing can comprise elements made of different materials.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020257032551A KR20250159204A (ko) | 2023-03-31 | 2024-03-28 | 모빌리티 차량의 배터리용 커버 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2303165 | 2023-03-31 | ||
| FR2303165A FR3147435B1 (fr) | 2023-03-31 | 2023-03-31 | Couvercle pour batterie d’engin de mobilité |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024200725A1 true WO2024200725A1 (fr) | 2024-10-03 |
Family
ID=87035920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/058609 Ceased WO2024200725A1 (fr) | 2023-03-31 | 2024-03-28 | Couvercle pour batterie d'engin de mobilité |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20250159204A (fr) |
| FR (1) | FR3147435B1 (fr) |
| WO (1) | WO2024200725A1 (fr) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011150085A1 (fr) * | 2010-05-25 | 2011-12-01 | Fisker Automotive, Inc. | Système et procédé permettant de réguler la température d'une batterie en utilisant l'air de la cabine |
| FR2967825A1 (fr) * | 2010-11-19 | 2012-05-25 | Peugeot Citroen Automobiles Sa | Dispositif et procede de controle thermique d'une batterie de traction d'un vehicule |
-
2023
- 2023-03-31 FR FR2303165A patent/FR3147435B1/fr active Active
-
2024
- 2024-03-28 KR KR1020257032551A patent/KR20250159204A/ko active Pending
- 2024-03-28 WO PCT/EP2024/058609 patent/WO2024200725A1/fr not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011150085A1 (fr) * | 2010-05-25 | 2011-12-01 | Fisker Automotive, Inc. | Système et procédé permettant de réguler la température d'une batterie en utilisant l'air de la cabine |
| FR2967825A1 (fr) * | 2010-11-19 | 2012-05-25 | Peugeot Citroen Automobiles Sa | Dispositif et procede de controle thermique d'une batterie de traction d'un vehicule |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3147435B1 (fr) | 2025-02-21 |
| FR3147435A1 (fr) | 2024-10-04 |
| KR20250159204A (ko) | 2025-11-10 |
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